升力风扇系统参数匹配及工作特性分析

江天牧; 张晓博; 王占学; 刘永泉; 宋伟锋

doi:10.13224/j.cnki.jasp.20230789

升力风扇系统参数匹配及工作特性分析

doi: 10.13224/j.cnki.jasp.20230789

1.
西北工业大学动力与能源学院，西安 710129
2.
中国航发沈阳发动机研究所，沈阳 110015

基金项目: 国家自然科学基金（52076180）；国家科技重大专项（J2019-Ⅰ-0021-0020）；航空发动机及燃气轮机基础科学中心项目（P2022-B-Ⅰ-005-001）；中央高校基本科研业务费专项资金资助

详细信息

作者简介:
江天牧（1996-），男，博士，主要从事航空发动机总体性能仿真与设计研究。E-mail：441522137@qq.com

通讯作者:
张晓博（1982-），男，教授，博士，主要从事航空发动机总体性能仿真与设计研究。E-mail：zhangxb@nwpu.edu.cn

中图分类号: V235.3
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- 被引次数: 0
出版历程
- 收稿日期: 2023-12-14
- 网络出版日期: 2025-09-29

Analysis of lift fan system parameter matching and operating characteristics

1.
School of Power and Energy，Northwestern Polytechnical University，Xi’an 710129，China
2.
Shenyang Engine Research Institute，Aero Engine Corporation of China，Shenyang 110015，China

摘要

摘要:
通过受力分析和热力过程分析建立了部件级升力风扇系统性能计算模型；分析了设计参数对性能的影响，并据此提出了升力风扇系统的初步设计方法；通过理论推导共同工作方程和数值计算共同工作线，分析了升力风扇工作线的特征以及各参数对工作线的影响；计算了升力风扇系统的高度速度和升力调节特性，并提出了升力调节的多参数联合控制规律。结果表明：性能计算模型的计算结果与CFD模拟结果趋势一致；提高设计流量和压比均可提高升力，但高压比设计会导致升力效率降低；随转速降低工作线逐渐从换算流量与压比的幂函数方程分散为一簇与马赫数相关的曲线，并且稳态与动态的工作线基本一致；多参数联合控制规律可以调节升力风扇升力并保持转速和裕度不变。
- 升力风扇系统 /
- STOVL推进系统 /
- 循环分析 /
- 共同工作线 /
- 总体性能分析
Abstract:
Through force analysis and thermodynamic process analysis, a component-level performance calculation model for the lift fan system was established. The impact of design parameters on performance was analyzed, and based on this, a preliminary design method for the lift fan system was proposed. By deriving the common working equations and calculating the common operating lines through numerical methods, the characteristics of the lift fan operating lines and the influences of various parameters on these lines were examined. The altitude-speed characteristics and lift adjustment characteristics of the lift fan system were calculated, and a multi-parameter joint control law for lift adjustment was proposed. The results showed that the performance calculation model’s results were consistent with the trends of CFD simulation results; increasing the design flow rate and pressure ratio can enhance the lift, but a high pressure ratio design may lead to lower lift efficiency. As the rotational speed decreased, the working line gradually dispersed from a power function of converted flow rate and pressure ratio into a cluster of curves related to Mach number, with the steady-state and dynamic operating lines being essentially consistent. The multi-parameter joint control law can adjust the lift of the lift fan system while maintaining constant rotational speed and margin.
- lift fan system /
- STOVL propulsion system /
- cycle analysis /
- co-operating lines /
- performance analysis

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图 1 升力风扇系统受力分析控制体示意图

Figure 1. Schematic diagram of force analysis control body for lift fan system

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图 2 升力风扇进气道总压损失指数特性

Figure 2. Characteristic of total pressure loss coefficient in the lift fan inlet duct

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图 3 升力风扇进气道综合畸变指数特性

Figure 3. Characteristic of overall distortion index in the lift fan inlet

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图 4 升力风扇系统的升力效率模拟结果对比

Figure 4. Comparison of simulation results for lift efficiency of the lift fan system

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图 5 升力风扇系统主要性能参数随设计压比和流量的变化规律

Figure 5. Variation of main performance parameters of the lift fan system with design pressure ratio and flow rate

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图 6 不同飞行高度下升力风扇的工作线

Figure 6. Operating lines of the lift fan at different flight altitudes

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图 7 不同飞行马赫数下升力风扇的工作线

Figure 7. Operating lines of the lift fan at different flight Mach numbers

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图 8 不同进口导叶角度下升力风扇的工作线

Figure 8. Operating lines of the lift fan at different inlet guide vane angles

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图 9 不同盒式喷管面积下升力风扇的工作线

Figure 9. Operating lines of the lift fan at different vane box nozzle areas

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图 10 升力风扇动态过程工作线与稳态工作线的对比

Figure 10. Comparison of dynamic process operating lines with steady-state operating lines of the lift fan

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图 11 升力风扇系统的高度速度特性

Figure 11. Altitude-speed characteristics of the lift fan system

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图 12 进口导叶角对升力风扇系统性能的影响

Figure 12. Influence of inlet guide vane angle on the performance of the lift fan system

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图 13 盒式喷管喉部面积对升力风扇系统性能的影响

Figure 13. Influence of box nozzle area on the performance of the lift fan system

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图 14 盒式喷管喉部面积随升力风扇进口导叶角变化规律

Figure 14. Variation of box nozzle area with the change in inlet guide vane angle of the lift fan

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图 15 多参数联合控制规律下与几何不可调时升力风扇系统的升力调节特性对比

Figure 15. Comparison of lift adjustment characteristics of the lift fan system under multi-parameter joint control law and with non-adjustable geometry

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表 1 升力风扇系统各部件的平衡方程及独立变量

Table 1. Balance equations and independent variables of each component of the lift fan system

部件	平衡方程	独立变量
升力风扇进气道		质量流量
升力风扇	流量平衡	压比比
盒式喷管	流量平衡
升力风扇轴	转矩平衡	物理转速
总计	3	3

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表 2 升力风扇系统设计点设计参数及关键性能参数

Table 2. Design parameters and key performance parameters at the design point of the lift fan system

参数名称		数值
设计点设计参数	高度/km	0
	马赫数	0
	升力风扇流量/（kg/s）	212.7
	升力风扇压比	2.263
	升力风扇效率	0.875
设计点性能参数	升力风扇系统升力/kN	83.10
	升力风扇消耗功率/MW	18.49
	升力风扇进口直径/m	1.295
	盒式喷管喉部面积/m²	0.447

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